He told us that the girl was _______, so we went to save her.
| A．dangerous | B．in danger | C．a danger | D．endangering |
The books _______ belong to Mr. Smith.
| A．which is on the table | B．lying on the table |
| C．are on the table | D．which on the table |
How little Franz regretted the days ______ playing in the woods and fields.
| A．which wasted | B．wasted | C．having wasted | D．which is wasted |
They _____ be at home. You see, the door is locked from the outside.
| A．may | B．must | C．mustn’t | D．can’t |
______ you return those books to the library immediately, you will have to pay a fine.
| A．Until | B．Unless | C．If | D．Provided |
The teacher began by _____ us where the city was and went on ______ about its history.
| A．telling...to talk | B．to tell...to talk | C．telling...talking | D．to tell...talking |